Ask most engineers why a lab holds pressure, and the conversation goes straight to control logic. Cascade loops, offset volumes, response times, and the algorithm that decides how the supply and exhaust valves talk to each other. It’s a fair place to start. But it’s also where too many people stop, and that’s exactly why
Ask any experienced lab facilities engineer what keeps them up at night, and sooner or later, the conversation turns to airflow. Not in a dramatic way, more like the quiet, nagging kind of worry that comes from knowing that a fume hood is only as safe as the ventilation system backing it up. You can
Laboratories are unforgiving environments. The margin between a controlled experiment and a compromised one can come down to a few pascals of differential pressure. Airborne contaminants do not ask permission before crossing into a cleanroom or an adjacent corridor. They move with air, and air moves wherever the pressure allows. The Venturi valve for lab
A Venturi air valve is a pressure-independent airflow-regulating device used in HVAC and ventilation systems. Its main feature is that it can keep a steady, preset air amount even when duct pressure goes up and down. These pressure fluctuations do not affect its ability to maintain the preset airflow. The name comes from the Venturi
Biosafety laboratories are highly specialized environments designed to handle hazardous biological materials safely. Whether it is a BSL-2, BSL-3, or BSL-4 lab, maintaining strict control over airflow, pressure, and contamination risk is essential. Any failure in the ventilation system can compromise experiments, endanger staff, and even lead to public health risks. At the heart of
It has just been over a year since the start of the pandemic that practically shut down many cities including Toronto. The COVID-19 has grammatically shifted and changed working norms as assessments are being done by building owners, landlords to make their properties safe, lucrative, and energized places to work hence they are appealing enough
A Venturi Air Valve (VAV) has a curved body that works as a valve seat and a cone that moves in and out of the throat of the Venturi to restrict airflow. When used with an appropriate controller, the Venturi Air Valve can precisely modulate airflow in a closed-loop control application, accuracy depends mainly on